-
Brown spar or
brown-
spar (German: braunspat): 70 is a trivial,
partly obsolete name for at
least four
carbonate minerals that are
relatively similar in...
- Ankerite, also
known as
brown spar: 258 (German: braunspat) is a calcium, iron, magnesium,
manganese carbonate mineral of the
group of
rhombohedral carbonates...
-
Adamantine spar is a
silky brown variety of corundum. It has a
hardness of 9 on the Mohs scale. Yogo
sapphire "Adamantine
Spar".
Archived from the original...
-
known as
mesitine spar,
ferrous magnesite or
brown spar is a
variety of magnesite, a
carbonate mineral, one of the so-called
brown spars,
regarded as an...
- Selenite,
satin spar,
desert rose, and
gypsum flower are
crystal habit varieties of the
mineral gypsum. All
varieties of gypsum,
including selenite and...
- Harper, Douglas. "fluorite".
Online Etymology Dictionary. Harper, Douglas. "
spar".
Online Etymology Dictionary.
James Harrell 2012. UCLA
Encyclopedia of Egyptology...
- Breunnerite, also
known as
brown spar: 258 (German: braunspat) is a
variety of magnesite, with a magnesium/iron
ratio of 90/10 to 70/30. It has been described...
-
Feldspar (/ˈfɛl(d)
ˌspɑːr/ FEL(D)-
spar;
sometimes spelled felspar) is a
group of rock-forming
aluminium tectosilicate minerals, also
containing other cations...
- were lead-zinc ore,
copper ore,
sulphur ore,
mixed ore (Melierterz),
brown spar (Braunerz),
barite ore (Grauerz),
banding ore (Banderz) and
kniest along...
- have been used for baryte,
including barytine, barytite, barytes,
heavy spar, tiff, and
blanc fixe.
Baryte occurs in many
depositional environments, and...