It tells about how they formed because of your mother, father, gentleman.
Ohh Sorry I'm joking!
THIS IS THE REAL ANSWER I PROMISE!
It is because of God or Jesus Christ! HA HA HA Stupid
Several factors affect the size of mineral crystals during their formation. They are as follows:
The fossilized ripples tell us about the environmental conditions when the rock was formed
Hydrochloric Acid- Calcite will fizz.
Hardness, specific gravity, cleavage, chemistry, crystallography, color.
by simply testing the streak of the mineral. all minerals have a different streak take a streak plate and scrape the rock down it in a straight line and the color should tell you what mineral it is :) that's the best way.
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The size of the crystal relates to how long the crystals were forming. For example crystals that cooled slowly are larger than those cooling faster.
Its age, how it was formed, and where it was formed
Whether it was fast crystallization - smaller Crystals or slow crystallization - bigger and finer Crystal forms!
scrach it on slat or your fingnali if the minerl gomes of it fake
I can't tell if you mean "crystal" as in "made of a crystalline material" or "crystal" as in "made of lead crystal, which is not technically a crystal at all". Take it to a jeweler. There's not any simple foolproof way a layman could tell.
Take your crystal to a local jeweler who can use a probe to help you determine whether or not your crystal is a diamond.
It distinguishes calciferous minerals from other minerals.
ask it!!
Easly
A pyrite is a cubic solid and a gypsum is a monoclinic solid.
Crystal is a type of glass. It contains lead oxide whereas cheap glass does not. This makes it rather heavier than cheap glass, size for size. It also looks 'sparkly'. The number 8 is used in various ways by many manufacturers.
Most of the time it will. Good crystal always will. You can tell crystal from glass by lightly tapping the side of the glass, vase, or item. When you do this you will get a ringing sound from crystal and a "thump" sound from glass.