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2. Quartz - Wikipedia

   en.wikipedia.org/wiki/Quartz

   Quartz is, therefore, classified structurally as a framework silicate mineral and compositionally as an oxide mineral. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar. [10] Quartz exists in two forms, the normal α-quartz and the high-temperature β-quartz, both of which are chiral. The transformation ...

3. Vein (geology) - Wikipedia

   en.wikipedia.org/wiki/Vein_(geology)

   White veins in dark rock at Imperia, Italy. In geology, a vein is a distinct sheetlike body of crystallized minerals within a rock. Veins form when mineral constituents carried by an aqueous solution within the rock mass are deposited through precipitation. The hydraulic flow involved is usually due to hydrothermal circulation. [1]

4. Engineered stone - Wikipedia

   en.wikipedia.org/wiki/Engineered_stone

   The private Spanish company Cosentino brand Silestone and the public Israeli company Caesarstone are the most recognizable brands for quartz, as well as Totem Quartz, an Iranian company which has a huge market in the middle east and Central Asia. Gulfstone, an Oman-based company, is the only producer of engineered quartz stone in the GCC.

5. Quartzite - Wikipedia

   en.wikipedia.org/wiki/Quartzite

   Quartzite can have a grainy, glassy, sandpaper-like surface. Quartzite is a hard, non-foliated metamorphic rock which was originally pure quartz sandstone. [1] [2] Sandstone is converted into quartzite through heating and pressure usually related to tectonic compression within orogenic belts.

6. Puddingstone (rock) - Wikipedia

   en.wikipedia.org/wiki/Puddingstone_(rock)

   This conglomerate consists of pebbles and cobbles of white vein quartz, red and green quartzite, sandstone, red and gray chert, and red shale. The grayish-purple to grayish-red conglomerate and sandstone is cemented largely by hematite and microcrystalline quartz. The cobbles that it contains range in size from 2.5 in (6.4 cm) to 6.5 in (17 cm).

7. Diabase - Wikipedia

   en.wikipedia.org/wiki/Diabase

   Diabase can be cut for use as headstones and memorials; the base of the Marine Corps War Memorial is made of black diabase "granite" (a commercial term, not actual granite). Diabase can also be cut for use as ornamental stone for countertops, facing stone on buildings, and paving. [ 21 ]

8. Countertop - Wikipedia

   en.wikipedia.org/wiki/Countertop

   Overall, the postform countertop is the most economical countertop on the market, and has the broadest selection of surface material to choose from. Surfaces can be either a solid color, or a pattern, and textures range from a satin furniture finish to a heavily textured stone or pebbled appearance to a high gloss resolution.

9. Inclusion (mineral) - Wikipedia

   en.wikipedia.org/wiki/Inclusion_(mineral)

   The term three phase relates to the three phases of matter, solid, liquid, and gas. This is a three phase inclusion in rock crystal quartz. The solid is a black material that is of bituminous origin. The liquid encased is petroleum, and the gas bubble is methane. Inclusions are one of the most important factors when it comes to gem valuation.