|The Mineral Identification Key|
Section III: Minerals with a Non-Metallic Luster & Hardness Greater than 5½
Step 12 Can the mineral be scratched by a sharp quartz point?
(Hardness less than 7?)
- [Go to Nonmetallic Luster Key (Hard): Step 13]
- [Go to Nonmetallic Luster Key (Hard): Step 14]
Step 10 Hardness
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