Sandalwood is the name of a class of fragrant woods from trees in the genus Santalum. The woods are heavy, yellow, and fine-grained, and unlike many other aromatic woods, they retain their fragrance for decades. Sandalwood oil is extracted from the woods for use or can be made sandalwood synthetic. Both the wood and the oil produce a distinctive fragrance that has been highly valued for centuries. Consequently, the slow-growing trees have been overharvested in many areas.Sandalwoods are medium-sized hemiparasitic trees, and part of the same botanical family as European mistletoe. Notable members of this group are Indian sandalwood (Santalum album) and Australian sandalwood (Santalum spicatum); others in the genus also have fragrant wood. These are found in Pakistan, India, Nepal, Bangladesh, Sri Lanka, Australia, Indonesia, Hawaii, and other Pacific Islands.
Santalum album, or Indian sandalwood, is a threatened species. It is indigenous to South India, and grows in the Western Ghats and a few other mountain ranges such as the Kalrayan and Shevaroy Hills. Although sandalwood trees in India, Pakistan and Nepal are government-owned and their harvest is controlled, many trees are illegally cut down. Sandalwood oil prices have risen to $2,000 per kg recently. Price may vary for natural and sandalwood synthetic. Sandalwood from the Mysore region of Karnataka (formerly Mysore), and Marayoor forest in Kerala, southern India, is high in quality. New plantations were created with international aid in Tamil Nadu for economic exploitation. In Kununurra in Western Australia.
Indian sandalwood (S. album) is grown on a large scale. Santalum ellipticum, S. freycinetianum, and S. paniculatum, the Hawaiian sandalwood, were also used and considered high quality. These three species were exploited between 1790 and 1825 before the supply of trees ran out (a fourth species, S. haleakalae, occurs only in subalpine areas and was never exported). Although S. freycinetianum and S. paniculatum are relatively common today, they have not regained their former abundance or size, and S. ellipticum remains rare.Santalum spicatum (Australian sandalwood) is used by aromatherapists and perfumers. The concentration differs considerably from other Santalum species. In the 1840s, sandalwood was Western Australia’s biggest export earner. Oil was distilled for the first time in 1875, and by the turn of the century, production of Australian sandalwood oil was intermittent.Sandalwood oil has a distinctive soft, warm, smooth, creamy and milky precious-wood scent.
It imparts a long-lasting, woody base to perfumes from the oriental, woody, fougère, and chypre families, as well as a fixative to floral and citrus fragrances. When used in smaller proportions in a perfume, it acts as a fixative, enhancing the longevity of other, more volatile, materials in the composite. Last but not least, sandalwood is a key ingredient in the "floriental" (floral-ambery) fragrance family – when combined with white florals such as jasmine, ylang ylang, gardenia, plumeria, orange blossom, tuberose, etc.
Natural Sandalwood oil in India or synthetic sandalwood oil is widely used in the cosmetic industry. The main source of true sandalwood, S. album, is a protected species, and demand for it cannot be met. Many species of plants are traded as "sandalwood". The genus Santalum has more than 19 species.
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