Staurolite - Wikipedia
WebStaurolite 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. Magnesium, zinc and manganese substitute in the iron site and trivalent iron can substitute for aluminium.
Staurolite: A metamorphic mineral famous for twinned crystals - Geology.com
WebWhat is Staurolite? 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: The mineral staurolite information and pictures
WebStaurolite is best known for its distinctive, cross-shaped penetration twin s, where two rectangular crystals intersect each other to form a perfect cross. However, its most common twinning habit is in bisecting crystals with a 60° angle that can appear in the shape of an "x" when the crystals are elongated.
Staurolite: Mineral information, data and localities. - mindat.org
WebFormula: Fe2+2Al9Si4O23(OH) The formula can also be considered as alternating layers of kyanite and oxide, and so can be recast as: 4Al 2 O [SiO 4]. AlFe 2+2 O 4 H. Colour: Dark brown, brownish-black, red-brown. Lustre: Sub-Vitreous, Resinous. Hardness: 7 - 7½. Specific Gravity: 3.74 - 3.83. Crystal System: Monoclinic. Member of:
Staurolite Meanings and Crystal Properties - The Crystal Council
WebMeaning & Energy. Staurolite activates and aligns one’s third eye, heart and root chakras together. These vital points alone are extremely powerful, but when combined, one’s spiritual path has no limits. This mineral promotes the highest version of oneself by channeling potent energy down to Earth.
Staurolite | Properties, Formation, Occurrence » Geology Science
WebMay 14, 2023 · Contents. Formation and occurrence. Physical Properties of Staurolite. Chemical Properties and Composition. Optical Properties. Geological Significance of Staurolite. Identification and Classification of Staurolite. Distribution and Localities. Industrial and Practical Uses of Staurolite.
Staurolite | Fairy Crosses, Metamorphic Rock, Twinned Crystals
WebStaurolite is a brittle, hard mineral that has a dull lustre. Its crystals are usually dark brown in colour and are often twinned in cruciform patterns (known as fairy crosses) that can be made into ornaments. The name is derived from stauros, the Greek word for cross.
Staurolite Group: Mineral information, data and localities.
WebStaurolite Group mineral data, information about Staurolite Group, its properties and worldwide locations.
Staurolite Mineral Data
WebScale: 3x2.5x1.5 cm. © John Betts - Fine Minerals. Staurolite Crystallography. Axial Ratios: a:b:c =0.4741:1:0.3405. Cell Dimensions: a = 7.88, b = 16.62, c = 5.66, Z = 2; beta = 90° V = 741.27 Den (Calc)= 3.64. Crystal System: Monoclinic - Prismatic H-M …
Staurolite – Mineral Properties, Photos and Occurrence
WebMay 5, 2022 · Staurolite – Mineral Properties, Photos and Occurrence. Author: Vic Ridgley. Published: 05.05.2022 09:12. Last updated: 05.05.2022 09:12. Staurolite belongs to the scientifically important but otherwise quite overlooked minerals. It is not very popular among mineral collectors, as most of the specimens looks similar to each other.
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