grossular – מילון אנגלי-אנגלי
grossular
n.
rare green mineral of the garnet type, transparent garnet
adj.
or or pertaining gooseberry; gooseberry-like
Grossular
Grossular is a
calcium-
aluminium mineral species of the
garnet gemstone group with the
formula Ca
3Al
2(SiO
4)
3, though the calcium may in part be replaced by ferrous
iron and the aluminium by ferric iron. The name grossular is derived from the
botanical name for the
gooseberry,
grossularia, in reference to the green garnet of this composition that is found in
Siberia. Other shades include
cinnamon brown (cinnamon stone variety), red, and yellow.
Grossular
(a.)
Pertaining too, or resembling, a gooseberry; as, grossular garnet.
(a.)
A translucent garnet of a pale green color like that of the gooseberry; -- called also grossularite.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter.
About
Grossular
General Information:
Chemical Formula:Ca3Al2(SiO4)3
Composition:(Molecular Weight = 450.45 gm)
Calcium 26.69 %
CaAluminum 11.98 %
AlSilicon 18.71 %
SiOxygen 42.62 %
O Empirical Formula: Ca3Al2(SiO4)3
Environment:Contact metasomatic deposits.
IMA Status:Accepted IMA 1980
Locality:Isle of Mull, Scotland.
Name Origin:Grossular is from the Latin grossularia meaning "gooseberry." Hessonite is from the Greek hesson, meaning "slight" in reference to the smaller specific gravity.
Physical Properties: Cleavage:[???] Distinct
Color:brown, colorless, green, gray, or yellow.
Density:3.42 - 3.72, Average = 3.57
Diaphaniety:Transparent to subtranslucent
Habits:Massive - Granular - Common texture observed in granite and other igneous rock., Euhedral Crystals - Occurs as well-formed crystals showing good external form., Crystalline - Fine - O ccurs as well-formed fine sized crystals
Hardness:6.5-7.5
Luminescence:Non-fluorescent.
Luster:Vitreous - Resinous
Streak:brownish white
More details...
grossular
s.
grossularite, sjelden grønn granat, gjennomsiktig granat
adj.
vedrørende stikkelsbær; stikkelsbærlik
