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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 ...
Guaiacum sanctum, commonly known as holywood, lignum vitae [4] or holywood lignum-vitae, is a species of flowering plant in the creosote bush family, Zygophyllaceae. It is native to the Neotropical realm , from Mexico through Central America , Florida in the United States , the Caribbean , and northern South America . [ 5 ]
The invention of the use of Guaiacum for syphilis. The genus is famous as the supplier of lignum vitae, which is the wood of several species in the genus. [citation needed] It is the fourth-hardest variety of wood as measured by the Janka hardness test, requiring a force of 4,500 lb f (20,000 N) to embed a steel ball 0.444 in (1.13 cm) in diameter half that distance into the wood.
Sophora howinsula, commonly known as lignum vitae or Lord Howe kowhai, is a flowering plant in the legume family. The specific epithet refers to the island to which the species is endemic. [ 1 ]
Image from Lignum-vitae; a study of the woods of the Zygophyllaceae with reference to the true lignum-vitae of commerce-its sources, properties, uses, and substitutes (1921) by Samuel James Record. Samuel James Record (10 March 1881 – 3 February 1945) was an American botanist who played a prominent role in the study of wood.
The seat is made from the dense hardwood called Lignum vitae. In this case the Lignum vitae is from the Guaiacum officinale tree. [1] This tree's flowers are the national flower of Jamaica. [2] The small chair is made in the form of a man on all fours. The head is decorated with gold and the figure is carved with male genitals underneath. [3]
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Guaiacum officinale is one of two species yielding the true lignum vitae, the other being Guaiacum sanctum.Guaiac, a natural resin extracted from the wood, is a colorless compound that turns blue when placed in contact with substances that have peroxidase activity and then are exposed to hydrogen peroxide.