Golden Rutile Quartz Lucky Bottle

Golden Rutile Quartz Lucky Bottle from China

Rutile quartz

Rutile quartz is a special variety of quartz in which needle-shaped inclusions of rutile (titanium dioxide) are visible. These inclusions can be golden, reddish-brown or black and often form a striking pattern within the transparent or slightly cloudy crystal. Rutile quartz is valued for this unique visual effect, which gives each specimen its own character.

The mineral is found in locations around the world, including Brazil, Madagascar, India and the United States. It forms in hydrothermal veins where rutile and quartz crystallise simultaneously. Quartz's chemical formula is SiO₂, while rutile has the formula TiO₂. Rutile quartz has a hardness of 7 on the Mohs scale.

Sources:
Mindat.org, Gemdat.org, Wikipedia - Rutile quartz

Selenite

Selenite is a clear to translucent variety of the mineral gypsum (CaSO₄-2H₂O). 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