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Xanthostemon verdugonianus, commonly known as mangkono or Philippine ironwood, is a species of plant in the family Myrtaceae. [2] It is endemic to the islands of the Visayas, Palawan, and northeastern Mindanao. It is valued for its extremely durable and heavy timber. It is threatened by habitat loss.
Lignum vitae is hard and durable, and is also the densest wood traded (average dried density: ~79 lb/ft 3 or ~1,260 kg/m 3); [4] it will easily sink in water. On the Janka scale of hardness, which measures hardness of woods, lignum vitae ranks highest of the trade woods, with a Janka hardness of 4,390 lbf (compared with Olneya at 3,260 lbf, [5] African blackwood at 2,940 lbf, hickory at 1,820 ...
Olneya ironwood is very hard and heavy. Its density is greater than water and thus sinks; it does not float downstream in washes and must be moved by current motion. Due to its considerable hardness, processing desert ironwood is difficult. Final treatment of the wood with solutions can also be difficult because of its high density.
Ironwood is a common name for many woods that have a reputation for hardness, or specifically a wood density that is denser than water (approximately 1000 kg/m 3, or 62 pounds per cubic foot), although usage of the name ironwood in English may or may not indicate a tree that yields such heavy wood.
The common English name hornbeam derives from the hardness of the woods (likened to horn) and the Old English beam, "tree" (cognate with Dutch Boom and German Baum).. The American hornbeam is also occasionally known as blue-beech, ironwood, or musclewood, the first from the resemblance of the bark to that of the American beech Fagus grandifolia, the other two from the hardness of the wood and ...
The wood is very hard and heavy. The genus name Ostrya is derived from the Greek word ὀστρύα (ostrúa), which may be related to ὄστρακον (óstrakon) "shell (of an animal)". [3] Regarded as a weed tree by some foresters [who?] [citation needed], this hard and stable wood was historically used to fashion plane soles.
Lophira alata, commonly known as azobé, ekki or the red ironwood tree, is a species of plant in the family Ochnaceae. It is found in Cameroon , the Republic of the Congo , the Democratic Republic of the Congo , Ivory Coast , Equatorial Guinea , Gabon , Ghana , Liberia , Nigeria , Sierra Leone , Sudan , and Uganda .
The reddish wood is very similar in strength and weight to that of Black Walnut (Juglans nigra), with a specific gravity of 0.55, [9] and is now sought for use in wood carving and furniture. [6] Koa is also a tonewood, [15] often used in the construction of ukuleles, [16] acoustic guitars, [17] and Weissenborn-style Hawaiian steel guitars. [18]