one way to identify a mineral is to rub it against a peice of porcelain tile.This procedure tests blank of the mineral
a.streak
b.hardness
c.luster
d.cleavage
2007-03-06 15:09:24 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
The correct answer is A. Streak which is the color of the powdered mineral that is left on the porcelain plate.
Hardness is tested on a glass plate.
Luster is the way light reflects off of the minerals surface.
Cleavage is the way a mineral breaks along a flat planar surface.
2007-03-06 15:17:24 · answer #1 · answered by evokid 3 · 0⤊ 0⤋
A. Streak. The streak is a very usefull tool to help determine a mineral. Some minerals will streak a different colour than they appear, such as hematite which is metallic grey but has a red streak.
p.s. Evokid is right on hardness. Hardness can be tested using a glass pane. If a mineral can scratch glass then it must be harder than about 8 mohs
Mountaingym your wrong!
2007-03-06 23:15:37 · answer #2 · answered by Professor Kitty 6 · 1⤊ 0⤋
The question asks what the procedure tests. The answer should be color. The question is misleading. The streak is the color of the mineral left on the tile and is the name of the test. This color helps determine the identity of the mineral.
2007-03-06 23:13:01 · answer #3 · answered by Michael D 2 · 0⤊ 2⤋
Evokid gave you some wrong info, a glass plate determines if a mineral has a hardness greater or lesser than 5. I use a penny to determine if it is hardness is two, a steel knife if it has a hardness of 5 and a piece of quartz for a hardness of 7.
2007-03-06 23:25:02 · answer #4 · answered by Amphibolite 7 · 0⤊ 2⤋