Fundamental Minerals

Sialic Minerals

• Feldspar
Feldspar
Sanidine
Plagioclase

• Feldspathoid
Feldspathoids
Haüyne
Kalsilite
Leucite
Nepheline


• Quartz

Femic Minerals

• Amphiboles
• Aenigmatite
• Biotite
• Sagenitic biotite
• Melilite
• Olivine
• Pyroxene
Structure
Clinopyroxene
Orthopyroxene

Accessory Minerals

• Andradite
• Apatite
• Cordierite
• Chromite
• Magnetite
• Ilmenite
• Titanite

Very Rare Minerals

• Gregorite
• Nyerereite
• Priderite

Secondary Minerals

• Calcite
• Chlorite
• Hematite
• Epidote
• Orpiment
• Phillipsite
• Pinite

Texture

• Amygdales
• Embayed
• Eutaxitic
• Felsic
• Glomerophyric
• Hyalopilitic
• Hypocrystalline
• Holohyaline
• Intergranular
• Intersertal
• Magmatic flow
• Opacitic rim
• Ophitic
• Poikilitic
• Pilotassitic
• Porphyritic
• Sieve
• Skeletal
• Spinifex
• Trachytic
• Vitrophyric
• Zoning
• Xenocryst
• Xenolith

Alteration Products

• Bowlingite
• Iddingsite
• Pseudomorph
• Saussurite
• Sericite
• Uralite

Glass and related Texture

• Volcanic glass
• Fiamme
• Perlite
• Palagonite
• Spherulites
• Shards

Volcanic Rocks

• Aillikite
• Alnöite
• Andesite
• Ankaramite
• Basalt
• Benmoreite
• Bergalite
• Comendite
• Coppaelite
• Dacite
• Dacite (devitrified)
• Garnet dacite
• Foidite
• Foidite (nepheline)
• Haüynophyre
• Hyaloclastite
• Horneblende Andesite
• Ignimbrite
• Ignimbrite (pantelleritic)
• Kaiserstuhl
Kaiserstuhl
Bergalite
Carbonatitic lapillistone
Diatreme breccia
Limburgite
Olivine nephelinite
Tephrite
Sövite
Wollastonite phonolite

• Kersantite
• Kimberlites
Kimberlites
Varty lake (Canada)
Sturgeon lake (Canada)
Monastery (S.Africa)
Udachnaya (Russia)
• Komatiites
Komatiites
Alexo (Canada)
Belingwe (Zimbawe)

• Lamprophyres
Lamprophyres
Aillikite
Alnöite
Bergalite
Kersantite
Monchiquite
Sannaite
Spessartite
Vosegite

• Lapillistone
• Latite
• Leucitite
• Limburgite
• Madupite (lamproite)
• Mafurite
• Monchiquite
• Natrocarbonatite
• Obsidian
• Oldoinyo Lengai
Ol Doinyo Lengai
Natrocarbonatite lava

• Peperine
• Pyroclastic flow
• Pitchstone
• Pillow lava
• Pumice
• Rhyolite
• Sannaite
• Scoria (basaltic)
• Scoria (phonolitic)
• Spessartite
• Tephrite
• Tephritic leucitite
• Tephritic phonolite
• Trachybasalt
• Trachyte
• Trachyte (foid-bearing)
• Venanzite
• Vitrophyre
• Vosegite

Kimberlite, Sturgeon Lake (Canada)

The Sturgeon Lake 01 body was the first kimberlite discovered in Saskatchewan area. It was found by heavy mineral sampling and shown to be diamondiferous, but not economic. The Sturgeon Lake 01 crop out in a gravel pit, 30 km northwest of Prince Albert. The body is a glacially transported mega-block of crater-facies volcaniclastic kimberlite that is at least 200 m by 125 m by 40 m in size. The block, which is 98 Ma in age, occurs within 100 m of glacial sediments that overlie Cretaceous bedrock shale. Marine shale of a similar age occurs adjacent to the kimberlite and appears to represent a separate glacial block(s).

The Sturgeon Lake 01 kimberlite contain two generations of olivine, macrocrysts of ilmenite, garnet, spinel and mica together with groundmass mica, spinel, perovskite, apatite, carbonate and serpentine. Texturally, the Sturgeon Lake 01 kimberlite is a subaerial pyroclastic air-fall lapilli tuff. The juvenile lapilli have amoeboid shapes and are vesicular; a feature which is similar to the kimberlites at Fort à la Corne, but unusual compared to other kimberlites worldwide. This suggests that the Sturgeon Lake 01 kimberlites formed by different emplacement processes to most documented kimberlites; probably by Hawaiian- and Strombolian-style eruptions infilling maar-like craters with no associated diatreme as proposed for the Fort à la Corne province.

Fig.1: Locations of the Sturgeon Lake kimberlites. The orange area is the north Sask Craton.

Sample kindly given to me by Oliver. L. (Canada)

Bibliography

•Paktunc, A. D., & Hulbert, L. (1996). Mineralogy of the Sturgeon Lake 01 kimberlite, Saskatchewan: A proton microprobe study of the macrocryst phases. Exploration and Mining Geology, 5(3), 263.

Photo

Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 1x (Field of view = 2mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 1x (Field of view = 2mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 1x (Field of view = 2mm)
Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 1x (Field of view = 2mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 1x (Field of view = 2mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 1x (Field of view = 2mm)
Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 1x (Field of view = 2mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 1x (Field of view = 2mm)	Rounded olivine (serpentinized) crystals and sedimentary xenolith, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 1x (Field of view = 2mm)
Rounded olivine (serpentinized) crystals and sedimentary xenolith, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 1x (Field of view = 2mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 1x (Field of view = 2mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 1x (Field of view = 2mm)
Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 1x (Field of view = 2mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 1x (Field of view = 2mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 1x (Field of view = 2mm)
Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 1x (Field of view = 2mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 1x (Field of view = 2mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 1x (Field of view = 2mm)
Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 1x (Field of view = 2mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 1x (Field of view = 2mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 1x (Field of view = 2mm)
Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 1x (Field of view = 2mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 1x (Field of view = 2mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 1x (Field of view = 2mm)
Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 2x (Field of view = 7mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 2x (Field of view = 7mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 2x (Field of view = 7mm)
Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 2x (Field of view = 7mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 2x (Field of view = 7mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 2x (Field of view = 7mm)
Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 2x (Field of view = 7mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 2x (Field of view = 7mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 2x (Field of view = 7mm)
Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 2x (Field of view = 7mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 2x (Field of view = 7mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 2x (Field of view = 7mm)
Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 2x (Field of view = 7mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 2x (Field of view = 7mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 2x (Field of view = 7mm)
Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 2x (Field of view = 7mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 2x (Field of view = 7mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 2x (Field of view = 7mm)
Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 2x (Field of view = 7mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 2x (Field of view = 7mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 2x (Field of view = 7mm)
Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 2x (Field of view = 7mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 2x (Field of view = 7mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 2x (Field of view = 7mm)
Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 2x (Field of view = 7mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 2x (Field of view = 7mm)	Rounded olivine (serpentinized) crystals, mica (brown) and spinel (black), set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 2x (Field of view = 7mm)
Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. PPL image, 2x (Field of view = 7mm)	Rounded olivine (serpentinized) crystals, set in a groundmass rich in calcite and serpentine. Sturgeon Lake kimberlite. XPL image, 2x (Field of view = 7mm)	Rounded garnet with fibrous reaction rim. Sturgeon Lake kimberlite. PPL image, 2x (Field of view = 7mm)
Rounded garnet (isotropic) with fibrous reaction rim. Sturgeon Lake kimberlite. PPL image, 2x (Field of view = 7mm)	Rounded garnet with fibrous reaction rim. Sturgeon Lake kimberlite. PPL image, 10x (Field of view = 2mm)	Rounded garnet (isotropic) with fibrous reaction rim. Sturgeon Lake kimberlite. XPL image, 10x (Field of view = 2mm)
Rounded garnet with fibrous reaction rim. Sturgeon Lake kimberlite. PPL image, 10x (Field of view = 2mm)	Rounded garnet (isotropic) with fibrous reaction rim. Sturgeon Lake kimberlite. XPL image, 10x (Field of view = 2mm)	Rounded garnet (isotropic) with fibrous reaction rim. Sturgeon Lake kimberlite. XPL image, 20x (Field of view = 1mm)