MINERALS 1 Flashcards
(54 cards)
Augite
Ca, Fe, Mg, Al pyroxene
Vitr/Res. Green. White str. Hard:6. C:2, Tabular
Orthoclase
K-Feldspar
KAlSi3O8
Vitr. Tan. White. 6. 2. Blocky
Albite
NaAlSi3O8
Muscovite
K aluminosilicate w/ OH
Vit/Pearl. Silver. White. 2.5. 1. Lamellar
5
Olivine
(Mg, Fe)2 SiO4
Vitr. Green. White. 6.5-7. Poor. Massive/Granular
6
Hornblende
Ca, Fe, Mg, Al amphibole w/ OH
Vitr/Dull. Black. White. 5. 2. Bladed/Prism
7
Amethyst
SiO2
Vit. Purple. White. 7. None. 6 side prism
Milky Qz
SiO2
Vit. White. White. 7. None. 6 Prism
Biotite
K, Mg, Fe, aluminosilicate w/ OH
Greasy. Black/Dark Brown. White. 2.5-3. 1. Lamellar
Wollastonite
CaSiO3
Vitr.
Lepidolite
Lethiumd-bearing Mica
Vit. Pink/Purple. White. 2.5-3. 1. Drusy
Fluorite
CaF2
Vit. White str. 4. 4. Nodular
Schorl (Tourmaline)
Li-bearing aluminosilicate w/ OH
Vit. Black. White. 7-7.5. None. Prism
Apatite
CaPO4 F/Cl
Red&Green
Chalcopyrite
CuFeS2
Metal. Gold/Purple. Black. 3.5-4. None. Dispheroid
Galena
PbS
Metal. Lead Grey. 2.5. 3. Tabular
Gypsum
CaSO4 2H2O
Vitr. White str. 1.5-2. 2. Prism
Chalcedony Qz
SiO2
Vitr. Foggy. White. 7. None.
Halite
NaCl
Vitr. White. White. 2-2.5. 3 (cube).
Talc
Mg silicate w OH
waxy. white/some blues/greens. 1. 1. Foliated/Fibrous
Aragonite
CaCO3
Vitr.Silk
Sylvite
KCl
Vitr. Red. White. 2. 3. Cubes
Labradorite
(Ca, Na)(Al, Si)4 O8
Pearl. Dark Grey. Whitre. 6-6.5. 2. Tabular
Barite
BaSO4
Vitr. 3-3.5