Bilingual edition: English is preserved and Chinese follows each unit. Terminology uses the confirmed v20260916 glossary; automated semantic review remains traceable.
中英双语版：英文原文完整保留，中文紧随对应单元；术语采用 v20260916 确认表，自动语义审校结果可追溯。

Borax

硼砂

Na2B4O5(OH)4.8H2O

Na₂B₄O₅(OH)₄·8H₂O

This sample of borax is displayed in the Smithsonian Museum of Natural History. Borax is an oxide mineral containing boron and sodium with the composition Na2B4O5(OH)4.8H2O. The sample at left is about 6 cm across and is from Western borax mine, Boron, California. This is part of the legendary evaporite deposit in Death Valley, California. From 1883-89, 20-mule teams hauled 36.9 ton loads of borax out of Death Valley. The deposit began forming some 10,000 years ago from evaporation of a vast lake.

这个硼砂样本陈列在史密森尼自然历史博物馆中。硼砂是一种含有硼和钠的氧化矿物，其化学式为Na₂B₄O₅(OH)₄·8H₂O。左侧的样本宽约6厘米，来自加利福尼亚州硼砂矿。这是加利福尼亚州死亡谷的著名蒸发沉积物的一部分。1883年至1889年间，20头骡子的队伍曾将36.9吨硼砂从死亡谷运出。该沉积物距今已有约10000年历史，最初是由一个广阔的湖泊蒸发形成。

Mindat: Borax

Mindat: 沙硼酸
Minerals
矿物
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