| Gewicht | 0,01 kg |
|---|---|
| Dimensions | 0,5 × 3 × 3 cm |
| Sales Unit | |
| Minimum order | 5 units |
| Type | |
| Size | |
| Form | |
| Origin | |
| SKU | 5862 |
Howliet Donut Hanger | 3 cm
Sales unit: Per unit
Minimum order: 5 units
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Howlite Donut Pendant measuring 3 cm
Howlite
Howlite is a calcium borosilicate that is usually white with grey to black veins, giving it a marble-like appearance. Because of its porous structure, howlite is often dyed to resemble turquoise. The mineral was discovered in Nova Scotia, Canada, in 1868 and is named after Canadian chemist Henry How.
Howlite occurs mainly in Canada, China and the United States, particularly in California. It forms in boron-rich evaporite environments and is often found in small-scale deposits within sedimentary rocks. Its chemical formula is Ca₂B₅SiO₉(OH)₅ and its hardness is 3.5 to 6.5 on the Mohs scale.
Sources:
Mindat.org, Gemdat.org, Wikipedia - Howlite
Donuts
Donut edelsteen hangers zijn platte, ronde hangers met een centraal boorgat van circa 5–6 mm. Ze zijn verkrijgbaar in diverse edelsteensoorten en maten van ongeveer 2,5 tot 5 cm, waarbij 3 cm bij ons het meest gangbaar is. Dankzij de vorm zijn ze gemakkelijk te dragen aan een koord of ketting.
