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Common Forms/Occurrences: Present in most igneous and both regional and contact metamorphic rocks Useful Identification Test: Transparent to translucent Chemical formula: K(Mg,Fe)3(Al,Si3O10)(OH,F)2 Crystal System: Very short prisms that split…

Common Forms/Occurrences: Common K-feldspar of pegmatites and hydrothermal veins; Prominent in granites Useful Identification Test: Demonstrates "tartan" twinning Chemical formula: KAlSi3O8 Crystal System: Translucent prisms with…

Audio - Immigrated to Canada from the Ukraine in 1930 at 5½ months of age. Had seven siblings. Parents bought 160 acres for $10. Talked about coming to Athabasca, homesteading in the Deep Creek area, clearing land, school years, trapping. Married…

Key Characteristics: Low relief, colorless nature, undulatory extinction and uniaxial character are diagnostic 2V: n/a Relief: Low positive relief Cleavage: None Colour and Plechroism: Colorless in thin section Optical Orientation: Undulatory…

Key Characteristics: The high relief, lack of cleavage, crystal form and high birefringence are all diagnostic 2V: 2Vx = 46 - 98° Relief: High positive relief Cleavage: Cleavage not visible in thin section; Grains are commonly fractured and display…

Common Forms/Occurrences: Common in dolomites and limestones Useful Identification Test: Soluble in H2SO4 with evolution of HF; slightly soluble in HCl Chemical formula: CaF2 Crystal System: Usually cubes Colour: Colourless, purple, blue, gray,…

Mineralogical Composition: Intermediate; Quartz, Potassium Feldspar, Plagioclase Feldspar, Pyroxene, Amphibole, Biotite Texture (extrusive/intrusive): Extrusive; Aphantic: fine-grained Other distinctive properties: Dark gray to black; Found at…

Mineralogical Composition: Visible crystals of two or more minerals in alternating light and dark foliated layers Texture (grain size, shape, sorting): Medium to coarse grained; Folitated Metamorphic grade: Intermediate Precursor rock: Mudstone,…

Common Forms/Occurrences: Found as blocky crystals in basalts, gabbro, and andesites Useful Identification Test: Insoluble in HCl Chemical formula: calcium ferromagnesian silicate Crystal System: Short, 8-sided prisms Colour: Dark green to gray…

Mineralogical Composition: Quartz sand grains fused together; grains will not rub off like sandstone, usually light colored Texture (grain size, shape, sorting): Fine to coarse grained; Nonfoliated Metamorphic grade: High Precursor rock: Sandstone…

Texture (grain size, shape, sorting): Mostly sand (1/16 - 2mm grains). Composition (detrital, biochemical, chemical): Detrital sediment grains; derived from the mechanical and chemical weathering of continental rocks, which are comprised mostly of…

Mineralogical Composition: Felsic, Intermediat, and Mafic; Muscovite, Quartz, Potassium Feldspar, Plagioclase Feldspar, Amphibole, Biotite; Olivine, Pyroxene Texture (extrusive/intrusive): Extrusive; Glassy Other distinctive properties: Dark green…

Texture (grain size, shape, sorting): No visible grains; dark, very fine-grained rock, usually breaks with a conchoidal fracture Composition (detrital, biochemical, chemical): Biochemical sediment grains; shells and shell/coral fragments, and/or…

Common Forms/Occurrences: Found in alabaster, satin spar, and selenite Useful Identification Test: Soft; Shows better cleavage than talc Chemical formula: CaSO4 ? 2H20 Crystal System: Tabular crystals, prisms, blades, or needles Colour: Colourless,…

Key Characteristics: Relief which changes upon rotation of stage, extreme δ, rhombohedral cleavage and lamellar twinning are all diagnostic. Dolomite usually has higher refractive indices than calcite and may be colorless or iron stained where…

Common Forms/Occurrences: Found near hot springs and volcanic regions Useful Identification Test: Identifiable odour when mixed with water (resembles rotton eggs) Chemical formula: S Crystal System: Transparent to translucent crystals or earthy…

Mineralogical Composition: Felsic; Muscovite, Quartz, Potassium Feldspar, Plagioclase Feldspar, Amphibole, Biotite Texture (extrusive/intrusive): Extrusive; Aphantic: fine-grained Other distinctive properties: Light coloured, pink, gray; Found as…

Mineralogical Composition: Mafic; Plagioclase Feldspar, Olivine, Pyroxene, Amphibole Texture (extrusive/intrusive): Extrusive; Aphantic: fine-grained Other distinctive properties: Gray to black; Found in metamorphic belts and rapidly cooled lava…

Audio - When Annie was five, her family moved from Smoky Lake to Pleasant View. While she loved school, a regret is not being able to go to high school as there was no mode of transportation. Annie married a farmer, Victor Wolanuk, and together they…

Mineralogical Composition: Visible sparkling crystals of platy minerals, bladed crystals, or prismatic crystals; breaks along scaly foliated surfaces Texture (grain size, shape, sorting): Medium to coarse grained; Folitated Metamorphic grade:…

Mineralogical Composition: Felsic; Muscovite, Quartz, Potassium Feldspar, Plagioclase Feldspar, Amphibole, Biotite Texture (extrusive/intrusive): Intrusive; Phaneritic: coarse-grained Other distinctive properties: Pink to dark gray and even black;…

Transcript of audio interview - Both talk about growing up on a farm, school years, sports. Jack talks about his job as a mechanic and living and working on a Charolais farm and about when they got married. They moved to Athabasca in 1992. Shirley…

Audio - Win was raised on a farm in Howsam, Saskatchewan. At times, wind, rain and snow made travelling very difficult, and Win’s father even bought a snow plane to get over snow drifts. Following high school, Win became a lab tech, married and then…