Mineral properties
The word mineral comes from the Latin minera, or mine. Until the nineteenth century, minerals were simply things that came out of mines—things that had […]
The word mineral comes from the Latin minera, or mine. Until the nineteenth century, minerals were simply things that came out of mines—things that had […]
Topaz is a silicate mineral of aluminium and fluorine with the chemical formula Al2SiO4(F,OH)2. Topaz crystallizes in the orthorhombic system, and its crystals are mostly […]
The largest gold nugget ever found In Alaska It weighs a whopping 294.10 troy ounces (9.14 Kilograms, 20.16 pound), and was found near the town […]
Distinguish among three broad categories of sedimentary environments and provide an example of each. List several sedimentary structures and explain why these features are useful […]
Identify and describe the six major igneous textures. The term texture is used to describe the overall appearance of a rock based on the size, […]
Describe how magmatic differentiation can generate a body that has mineralogy (chemical composition) that is different from its parent magma. Geologists have observed that, over […]
Precious stones have been prized since antiquity. Although most gemstones are varieties of a particular mineral, misinformation abounds regarding gems and their mineral makeup.
Distinguish between compositional and structural variations in minerals and provide one example of each. Many people associate the word crystal with delicate wine goblets or […]
Conglomerate consists largely of rounded gravel-size particles (Figure 1). As Figure 2 indicates, these particles can range in size from large boulders to particles as […]
It is worth noting that only eight elements make up the vast majority of the rock-forming minerals and represent more than 98 percent (by weight) […]
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