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2. Chrysanthemum stone - Wikipedia

   en.wikipedia.org/wiki/Chrysanthemum_stone

   Chrysanthemum stone, sometimes called "flower stone," is a stone "flower" produced millions of years ago due to geological movement and natural formation in the rock. [1] The stone's pattern resembles the chrysanthemum flower. The flower is milky white and grain is clear. Chrysanthemum stone is generally dark-gray or black, and does not contain ...

3. List of quarries in the United States - Wikipedia

   en.wikipedia.org/wiki/List_of_quarries_in_the...

   According to Marble.com, in 2016 there were 276 quarries producing natural stone in 34 states, and states producing the most granite were Texas, Massachusetts, Indiana, Wisconsin, and Georgia. [ 1 ] The term "quarry" refers also to sites producing aggregate, molding sand, or other resources besides cut stone.

4. Gemstone - Wikipedia

   en.wikipedia.org/wiki/Gemstone

   Gemstone. Group of precious and semiprecious stones—both uncut and faceted—including (clockwise from top left) diamond, uncut synthetic sapphire, ruby, uncut emerald, and amethyst crystal cluster. A gemstone (also called a fine gem, jewel, precious stone, semiprecious stone, or simply gem) is a piece of mineral crystal which, when cut or ...

5. Tennessee marble - Wikipedia

   en.wikipedia.org/wiki/Tennessee_marble

   Quarried block of pink Tennessee marble. Tennessee marble is a type of crystalline limestone found only in East Tennessee, in the southeastern United States.Long esteemed by architects and builders for its pinkish-gray color and the ease with which it is polished, the stone has been used in the construction of numerous notable buildings and monuments throughout the United States and Canada ...

6. Húsafell Stone - Wikipedia

   en.wikipedia.org/wiki/Húsafell_Stone

   The Húsafell Stone is a legendary lifting stone weighing 186 kg (410 lb) [1] located in a west country farming estate in Húsafell, Iceland about 132 km (82 mi) northeast of Reykjavík. [1] The slightly triangular, slab shaped stone is kept at a sheep and goat pen built from natural stones by Reverend Snorri Björnsson around 1756, and was ...

7. Sapphire - Wikipedia

   en.wikipedia.org/wiki/Sapphire

   Sapphire is one of the two gem-varieties of corundum, the other being ruby (defined as corundum in a shade of red). Although blue is the best-known sapphire color, it occurs in other colors, including gray and black, and also can be colorless. A pinkish orange variety of sapphire is called padparadscha.