The Wonderful World of Minerals!

1. The Wonderful World of Minerals!

2. Sulfur • Luster: Non-Metallic/Dull. • Fracture: Earthy. • Other properties: Rotten egg smell, yellow.

3. Quartz • Cleavage: Hexagonal • Hardness: 7 on hardness scale • Other Properties: Common rock making mineral.

4. Calcite • 3 on the hardness scale. • Other Properties: Bubbles in acid (HCL) double image.

5. Hematite • Luster: Metallic • Fracture: Uneven • Other Properties: Common name is bloodstone.

6. Fluorite • Cleavage: Octahedral • Hardness: 4 on the hardness scale. • Other Properties: Fluorescent.

7. Limonite • Luster: Non-Metallic: Dull • Fracture: Earthy • Other Properties: Porous.

8. Olivine • Luster: Non-Metallic; Sparkly • Other properties: Sugary Texture

9. Pyrite • Luster: Metallic • Cleavage: Cubical • Other properties: Common name is fools gold.

10. Feldspar • Fracture: Blocky • Other Properties: Most common rock making mineral

11. Talc • Luster: Non-metallic; waxy. • Hardness: 1 on Mohs Other properties: used for cosmetics and talcum powder (baby powder).

12. Magnetite • Luster: Metallic • Other Observed Properties: Magnetic

13. Galena • Luster: Metallic • Cleavage: Cubical • Other properties: source of lead.

14. Sphalerite • Luster: can be Metallic or non-metallic depending on how you see it. • Other Properties: Smelly Streak.

15. Halite • Luster: Non-Metallic • Cleavage: Cubical • Other Properties: Source of salt/ rock salt.

16. Gypsum • Luster: Non-Metallic; Silky • Cleavage: Fibrous or stringy. • Hardness: 2 on Hardness scale.

17. Mica • Cleavage: Basil Perfect • White: Mica muscovite • Black: Mica Biotite