Descriptive Mineralogy Halides Minerals with Halogen Anions Classification

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Descriptive Mineralogy Halides: Minerals with Halogen Anions

Descriptive Mineralogy Halides: Minerals with Halogen Anions

Classification of the Minerals • Non-Silicates – Native Elements – Halides – Sulfides –

Classification of the Minerals • Non-Silicates – Native Elements – Halides – Sulfides – Oxides – Hydroxides – Carbonates – Sulfates – Phosphates • Silicates – Orthosilicates – Sorosilicates – Cyclosilicates – Chain Silicates – Layer Silicates – Tektosilicates

Halides: Minerals with halogen anions • Halite (Na. Cl) and Sylvite (KCl): Evaporites •

Halides: Minerals with halogen anions • Halite (Na. Cl) and Sylvite (KCl): Evaporites • Fluorite (Ca. F 2) Low temperature hydrothermal • Cryolite (Na 3 Al. F 6): Pegmatite

Halite Cube

Halite Cube

Halite Na. Cl Crystal System Cubic Point Group 4/m-32/m Space Group Fd 3 m

Halite Na. Cl Crystal System Cubic Point Group 4/m-32/m Space Group Fd 3 m Optical isotropic 1. 51 Color colorless Luster Vitreous Hardness 2 Density 2. 1 g/cm 3

Halite Na. Cl Occurrence: Evaporites, Salt Domes Uses: Table salt, De-icing, Nuclear waste host

Halite Na. Cl Occurrence: Evaporites, Salt Domes Uses: Table salt, De-icing, Nuclear waste host rock?

Halite has low density and deforms plastically

Halite has low density and deforms plastically

Sylvite KCl Crystal System Cubic Point Group 4/m-32/m Space Group Fm 3 m Optical

Sylvite KCl Crystal System Cubic Point Group 4/m-32/m Space Group Fm 3 m Optical isotropic 1. 45 Color colorless Luster Vitreous Hardness 2 Density 1. 99 g/cm 3 Occurrence EVP

Potash Ponds near Moab

Potash Ponds near Moab

Fluorite Ca. F 2 Crystal System Cubic Point Group 4/m-32/m Space Group Fm 3

Fluorite Ca. F 2 Crystal System Cubic Point Group 4/m-32/m Space Group Fm 3 m Optical isotropic 1. 43 Color violet, green Luster Vitreous Hardness 4 Density 3. 18 g/cm 3 Occurrence LTH

Fluorite Veins in Granite

Fluorite Veins in Granite

Descriptive Mineralogy Classification of Minerals Classification of theDescriptive Mineralogy Classification of Minerals Classification of the
Descriptive Mineralogy NonSilicates Carbonates Classification of the MineralsDescriptive Mineralogy NonSilicates Carbonates Classification of the Minerals
Descriptive Mineralogy Sulfides Classification of the Minerals NonSilicatesDescriptive Mineralogy Sulfides Classification of the Minerals NonSilicates
Tungsten or Quartz Halogen Tungsten filament Halogen glassTungsten or Quartz Halogen Tungsten filament Halogen glass
Aryl Halides ArX Organic compounds with a halogenAryl Halides ArX Organic compounds with a halogen
Key Words cations anions halides quantitative qualitative flameKey Words cations anions halides quantitative qualitative flame
Classification of Minerals by Anionic Species Anions areClassification of Minerals by Anionic Species Anions are
Introduction to Mineralogy n Mineralogy is a mixtureIntroduction to Mineralogy n Mineralogy is a mixture
Lecture 1 Introduction to Mineralogy Mineralogy The studyLecture 1 Introduction to Mineralogy Mineralogy The study
History of Mineralogy Earth Structure History of MineralogyHistory of Mineralogy Earth Structure History of Mineralogy