what types of stone sparkle or glitter slightly in sunlight, that can be used in the garden?

Answer 1

mica

Answer 2

I have a huge quartz rock in my garden with hexagonal crystals in it and when the sun catches it just right it's beautiful. Don't know where you could buy one, I found mine. They're quite common around here. I've seen some the size of a small car up on the wild woolly hills. I live in Wales.

Answer 3

Granite, from igneous rock, is a very hard, crystalline, and primarily composed of feldspar, quartz accompanied by one or more dark minerals. It is visibly homogeneous in texture.

The term "Granite" means "grain" in Latin word "Granum" because of its granular nature.

Granite is the hardest building stone, and granite slabs and granite tiles occupy a prominent place among dimensional stones. Due to its hardness, resistance to weathering, capability to take mirror polish, fascinating colors and textural patterns, granite slabs and granite tiles are extremely popular.

The principal characteristics of granite also include high load bearing capacity, crushing strength, abrasive strength, amenability to cutting and shaping without secondary flaws, ability to yield thin and large slabs and - above all - durability.

Due to highly dense grain, it is impervious to stain. Polished granite slabs and granite tiles have achieved a special status as building stones globally. Granite is also used for wall cladding, roofing, flooring, and a variety of other interior and exterior applications.

India is one of the largest producers of granites blocks and processed granite slabs and granite tiles. Granites from leading Indian exporters are listed here.

Physical Properties of Granite
In terms of its physical properties granite is a unique material. These properties lending uniqueness to granite are:

Porosity/permeability
Granite has almost negligible porosity ranging between 0.2 to 4%.

Thermal Stability
Granite is thermally highly stable, so it shows no changes with the changing temperature. Granite is impervious to weathering from temperature and even from the air borne chemicals. It is the highly resistance to chemical erosion which makes granite useful for making tanks to store highly caustic material.

Answer 4

If you have a slate quarry nearby you will find lumps of limestone full of quartz, that dazzles in the sunlight. Or look for disused iron mine dumps, there you can find lumps of ore waste that contains iron pyrite, that looks like gold streaks and also glistens.

Answer 5

Pyrite, Fools Gold. Has a multitude of gold flakes in it. It looks more like we expect Gold to look than the real thing.

Answer 6

Granite.

Answer 7

opal, check out the pics:
http://images.google.com/images?hl=en&q=opal&ie=UTF-8&oe=UTF-8&um=1&sa=N&tab=wi

or diamonds, lol

Answer 8

granite