Black Marble Powerbank Universal Emergency External Battery 7000 mAh
by Eleaxart
Design Black Marble Powerbank
Illustration imitation MARBLE In geology, marble is a metamorphic rock derived from limestone and consisting mainly of calcite crystals. In architecture, sculpture and marble, this term can refer to any stone hard to cut and able to take a beautiful polish, the most common of which are the "real" marbles. In marble and art history, "marble" more broadly refers to a compact limestone (non-porous and impermeable), firm and sturdy, hard to carve (does not get sharp with a tooth saw), and especially who can to receive a beautiful polite. In this case it is not only metamorphic rocks, but also many unmetamorphosed sedimentary rocks.