Contributors in General jewelry
General jewelry
翠榴石
Fashion; General jewelry
emantoid 是罕見和寶貴 andradite 石榴石。它陳列的綠党從單調到明亮的翡翠綠和罕見的情況下顯示黃色的範圍。莫氏硬度的規模,demantoid 是相對較軟的在 6.5。它具有金剛光澤。 ...
密度
Fashion; General jewelry
The ratio of a gemstone when compared to the weight of an equal volume of water. This means how heavy a gemstone is compared to the same volume of water. Also known as "specific gravity" for solids.
擴散處理
Fashion; General jewelry
將一個或多個化學物質添加到加熱過程要更改顏色的寶石的熱處理的形式。通常治療沒有穿透深為石,所以不能擴孔寶石以這種方式對待。擴散治療是標準治療增加星級藍寶石中的星群效應。 ...