Mineral s Toirov Jamoliddin Mineral Classification Minerals

Mineral s Toirov Jamoliddin

Mineral Classification Minerals are classified based on chemical composition and crystal structure. Minerals are made of different ions bonded together. Ions are charged atoms · Cations are positively charged whereas · Anions are negatively charged Minerals are made mainly of these ions

Physical Properties of Minerals n COLOUR HARDNESS n CLEAVAGE n SPECIFIC GRAVITY n STREAK n CRYSTAL FACES n

mineral divided into two groups: Non-metallic mineral Metallic mineral

n Nonmetallic minerals include mining and chemical raw materials (eg, apatite, phosphorite, barite), raw materials for the extraction of industrial minerals (asbestos, mica, graphite, precious and semi-precious stones, etc. ), industrial minerals (clay, sand, granite, etc. . ). sector. c QUARTZ Clay

Minerals are solid, liquid and gas, which determines the specificity of their extraction and enrichment. Distinguish between simple and complex minerals. Of the latter, you can get a few components that are used in the economy.

Hardness Refers to "scratchability" or resistance to being scratched. Harder minerals will scratch softer minerals. Geologists rank minerals according to hardness using the Moh's scale Moh's Hardness Scale (Commit this to memory) 1. 0 TALC 2. 0 GYPSUM 2. 5 FINGERNAIL 3. 0 CALCITE 3. 5 COPPER PENNY 4. 0 FLUORITE (Note the spelling!) 5. 0 APATITE 5. 5 STEEL KNIFE BLADE/GLASS PLATE 6. 0 ORTHOCLASE FELDSPAR 7. 0 QUARTZ 8. 0 TOPAZ 9. 0 CORUNDUM (RUBY) 10. 0 DIAMOND

What makes a mineral a Gemstone? n n There are over two hundred recognised gemstones. Most are minerals and are cut from naturally occurring crystals. To qualify as a gem, the specimen should be hard and tough to resist scratching and have beautiful clarity, colour or 'fire'. Value is based on rarity and rare quality.