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There is also a yellow variety of quartz, which is sometimes called “false topaz.”

Bianetta is in dark-green velvet, the collar sewn with pearls, and a full skirt, its hem embroidered with great false topazes set in silver.

Among the beautiful productions of nature, rock-crystal may be classed, known as the false topaz when yellow, the morion when black, and the smoky quartz when brown.

Quartz of yellow and brown colour is often known in trade as "false topaz," or simply "topaz."