-
chemical elements that
occupy equivalent positions in the
mineral's structure; for example, the
formula of
mackinawite is
given as (Fe,Ni) 9S 8,
meaning Fe...
- The
mineral aggregate heliotrope (from
Ancient Gr**** ἥλιος (hḗlios) 'sun', and τρέπειν (trépein) 'to turn'), also
known as
bloodstone or ematille, is...
- spar,
desert rose, and
gypsum flower are
crystal habit varieties of the
mineral gypsum. All
varieties of gypsum,
including selenite and alabaster, are...
-
chemical formula of SiO2.
Quartz is, therefore,
classified structurally as a
framework silicate mineral and
compositionally as an
oxide mineral. Quartz...
-
Dolomite (/ˈdɒl.əˌmaɪt, ˈdoʊ.lə-/) is an
anhydrous carbonate mineral composed of
calcium magnesium carbonate,
ideally CaMg(CO3)2. The term is also used...
-
Gypsum is a soft
sulfate mineral composed of
calcium sulfate dihydrate, with the
chemical formula CaSO4·2H2O. It is
widely mined and is used as a fertilizer...
-
family of
minerals, and its
chemical formula is Be(Mg, Fe, Zn)2Al6O12. Its
hardness is 8 to 8.5 on the Mohs scale. Due to its rarity, the
mineral can sell...
- Kyawt****te is a rare
mineral with a
simple formula: Bi3+Sb5+O4. It is a
natural bi****h antimonate. Kyawt****te is monoclinic, with
space group I2/c, and...
- Stibnite,
sometimes called antimonite, is a
sulfide mineral with the
formula Sb2S3. This soft grey
material crystallizes in an
orthorhombic space group...
-
Topaz is a
silicate mineral made of
aluminum and
fluorine with the
chemical formula Al2SiO4(F, OH)2. It is used as a
gemstone in
jewelry and
other adornments...
