Qilian Jade and Xinjiang Hotan Jade, although both belong to tremolite jade, have significant differences in several aspects.

**Appearance**: Qilian Jade has a richer color palette, commonly found in green, dark green, grayish-white, and yellow. Its texture is generally not as fine as Hotan Jade, often containing impurities like jade veins and stone flowers, and its luster is relatively weaker. Xinjiang Hotan Jade, on the other hand, is renowned for its warm and lustrous 'mutton fat' white jade, characterized by a fine, oily texture, a greasy luster, a warm feel, and high density.

**Composition**: Both are primarily composed of tremolite, but differ in trace elements and mineral structure. Qilian Jade generally has a lower tremolite content and is often accompanied by serpentine, actinolite, chlorite, and other associated minerals, leading to a slightly lower hardness (Mohs hardness of approximately 5.5-6) and toughness compared to Hotan Jade (Mohs hardness of approximately 6-6.5).

**Value**: Xinjiang Hotan Jade's value is significantly higher than Qilian Jade due to its rarity, superior quality, profound cultural heritage, and market recognition. 'Mutton fat' white jade, in particular, is a prized collector's item. While Qilian Jade also possesses unique aesthetic value, its market price is generally lower due to its relatively larger output and generally inferior texture compared to Hotan Jade, making it more suitable for daily wear or entry-level collections.

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