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The karambit or kerambit (as used in Indonesian), kurambik or karambiak (both from the Minangkabau language) is a small curved knife resembling a claw. It is most closely associated with the Minangkabau people of West Sumatra , Indonesia , but is also found throughout other ethnic groups in Southeast Asia .
Kris blades are usually narrow with a wide, asymmetrical base, one rare kind of kris with a broad blade is the keris buah beko in Kelantan and Java copying the shape of the oroxylum seed pod. [26] The kris is famous for its wavy blade; however, older types of kris dated from the Majapahit era have straight blades, [ 27 ] as do more than half of ...
There are two preferred ways to grow Glass Gem. It grows well in rows 30 inches (76 cm) apart with seeds placed 6–12 inches (15–30 cm) apart. Planting three or four seeds in holes spaced 3–4 feet (0.91–1.22 m) apart is also a good way to cultivate it. Harvest the corn when the husks are dry and brown. [7] Glass Gem is a fast maturing ...
"Yogo sapphire" is the preferred term for gems found in the Yogo Gulch, whereas "Montana sapphire" generally refers to gems found in other Montana locations. [18] More gem-quality sapphires are produced in Montana than anywhere else in North America. [18] Montana sapphires come in a variety of colors, though rubies are rare. [16] [18] [23]
The most popular form of sapphire is blue sapphire, which is known for its medium to deep blue colour and strong saturation. Fancy sapphires of various colours are also available. In the United States, blue sapphire tends to be the most popular and most affordable of the three major precious gemstones (emerald, ruby, and sapphire).
Heating, either underground naturally by metamorphic processes, or artificially, removes the brown or burgundy colour component to produce a stronger violet-blue color and makes the stone "dichroic", which means it only reflects blue and violet. [30] Rarely, gem-quality tanzanite will heat to a green primary hue, almost always accompanied by a ...
A conoscopic interference pattern or interference figure is a pattern of birefringent colours crossed by dark bands (or isogyres), which can be produced using a geological petrographic microscope for the purposes of mineral identification and investigation of mineral optical and chemical properties.
In South American folklore, the carbuncle is a small elusive animal containing a mirror, shining gemstone or riches like gold. [4] [5] The description of the carbuncle vary, some saying it looks like a firefly in the night, or like having a bivalve-like shell and maize ear shape. [4]