Object Record
Images
Metadata
Object Name |
Tourmaline |
Object Description |
Single elongate and broken crystal of black opaque striated schorl (tourmaline) embedded in colorless massive quartz. Another fragment of a smaller schorl crystal and silvery muscovite mica are also present. |
Collector |
Colburn, William B. |
Place of Origin |
North Carolina/Catawba County |
Site Name |
Oscar O. Hefner Farm |
Rock type |
Mineral |
Chemical Comp |
Boro-aluminum silicate |
Crystal System |
Hexagonal |
Sp Grav. |
3.0-3.3 |
Hardness |
7 - 7.5 |
Luster |
Vitreous |
Streak |
White |
Fracture |
Uneven, conchoidal |
Classification |
Geology |
Variety |
Schorl |
Search Terms |
Mineral |
Dimensions |
H-3.57 W-4.13 L-7.71 cm |
Catalog Number |
12290 |