Staurolite is a reddish brown to black, mostly opaque, nesosilicate mineral with a white streak. It crystallizes in the monoclinic crystal system, has a Mohs hardness of 7 to 7.5 and the chemical formula: Fe 2+ 2 Al 9 O 6 (SiO 4 ) 4 (O,OH) 2 .

Staurolite is a mineral that is commonly found in metamorphic rocks such as schist and gneiss. It forms when shale is strongly altered by regional metamorphism. It is often found in association with almandine garnet, muscovite, and kyanite - minerals that form under similar temperature and pressure conditions.

Staurolite, also known as Fairy Stone or Fairy Cross, is a nesosilicate mineral that naturally occurs in cross shapes (cruciform). The minerals usually cross at a 60 or 90 degree angle, with some specimens representing a perfect perpendicular cross. Staurolite’s genetic makeup is very complex, containing aluminum, zinc, magnesium and iron.

2022年8月29日 · Staurolite is a red-to-black crystalline silicate mineral that forms in pairs of prismatic crystals with right angles. The name Fairy Cross seems apt, especially if you have a great example of the mineral.

From Greek "stavros", cross, alluding to the cruciform twins it displays in some cases. Staurolite Group. Visit gemdat.org for gemological information about Staurolite. As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams. Please only use the official IMA–CNMNC symbol.

2024年10月8日 · Staurolite, characterized by its unique cross-shaped twinning, holds significant metaphysical importance, symbolizing strength, protection, and emotional healing. Its grounding properties align it with the root chakra, promoting stability and resilience.

2024年7月1日 · Staurolite is a metamorphic mineral that forms under high temperatures and pressures. It is known for its distinct cruciform or cross-shaped crystal habit. How does staurolite form? Staurolite forms during regional metamorphism, which occurs when rocks are subjected to high pressures and temperatures deep within the Earth’s crust.