Aspen wood is light in colour and weight, has a poor structure and a satiny texture, however is used as a decorative veneer. (Mi)
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Ash referes to a family of trees, which are mostly used in building furniture.
The colour of the European ash varies from honey to medium brown, where as the American ash is a light creamy colour and is dense and heavy. The American ash is usually used as lumber for strength where as the European ashes are used for veneers. (Mi)
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Amboyna is an East Indian wood, has light reddish-brown burls, and is used as a veneer and inlay in furniture since the Roman times. (Mi)
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(AKA Violetwood/Purpleheart) is a purplish wood which has been used for veneering since the 18th century. (Mi)