| Gewicht | 0,05 kg |
|---|---|
| Dimensions | 1,1 × 1,1 × 3,5 cm |
| Sales Unit | |
| Type | |
| Form | |
| Origin | |
| SKU | 5843 |
Yellow Aventurine Lucky Bottle
Sales unit: Per 10 pieces
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Yellow Aventurine Lucky Bottle from China
Aventurine
Aventurine is a variety of quartz that contains tiny inclusions of shimmering minerals such as mica or haematite, creating a sparkling effect called aventurescence. The most common colour is green, but specimens also exist in blue, orange, brown and grey.
Major deposits include India, Brazil, Russia and Tanzania. Aventurine belongs to the quartz family with the chemical formula SiOâ‚‚. Its hardness is between 6.5 and 7 on the Mohs scale.
Well-known varieties are green aventurine (usually with fuchsite), blue aventurine (with dumortierite) and orange to red-brown varieties (with haematite or goethite).
Sources:
Mindat.org, Gemdat.org, Wikipedia - Aventurine
Selenite
Selenite is a clear to translucent variety of the mineral gypsum (CaSOâ‚„-2Hâ‚‚O). It is known for its glassy to pearly luster and often fibrous structure. A common form is selenite, which has a silky luster and occurs in long, fibrous crystals. Despite its name, selenite has nothing to do with the element selenium; the name is derived from the Greek word for moon, because of its soft luster.
Selenite forms in sedimentary environments during the evaporation of seawater and is found in countries such as Mexico, Morocco, the US and Australia. It is a soft mineral with a hardness of 2 on the Mohs scale, making it easy to work by hand. Almost all selenite sold on the Dutch market is satin spar; however, selenite is a market-accepted sales name.
Sources:
Mindat.org, Gemdat.org, Wikipedia - Selenite
