a mineral that lack silicon or oxygen is called a
Opals are not truly minerals (because they don't have a crystalline structure), they are in a class called mineraloid. A mineraloid is an amophous, inorganics substance that lacks a crystalline structure, but are mineral in nature. You will find that in many older reference systems, they may well be classed as minerals.
Black ice
Soil that lacks moisture.
colorado
your question lacks a subject and a verb
For example the mercury sulfide (HgS) - cinnabar.
No. Coal is not a mineral for two reasons: it lacks a crystal structure and it is organic.
n lacks oxygen when you sneeze
It is. Dry air lacks water vapor, not oxygen.
I would think this means it lacks Iron.
Peridotite:magnesium-rich mineral which is ultramafic because it lacks silica
False. Afghanistan has major mineral reserves but lacks the infrastructure to exploit it.
The metamorphic rock that lacks mineral grains with long axes in one direction is called marble. Marble is formed from the metamorphism of limestone or dolomite, and its grains do not exhibit a preferred orientation or alignment. It often has a smooth and uniform appearance, making it a popular material for sculptures and architectural purposes.
Pumice is a type of extrusive volcanic rock, produced when lava with a very high content of water and gases (together these are called volatiles) is extruded (or thrown out of) a volcano. Pumice is not a mineral because it does not have a definite composition and lacks a crystalline structure.
If oxygen's excluded, any. As fire needs oxygen to burn, if it lacks this, it won't burn.
because your brain lacks in oxygen , therefore you yawn :D
Yes. Quartz can have very well-formed crystals but lacks cleavage.