鉻鉀礦

{{Infobox mineral
| name = 鉻鉀礦
| image = Potassium dichromate (synthetic).jpg
| imagesize = 260px
| alt =
| caption =
| category = 硫酸鹽礦物
| formula = K2Cr2O7
| IMAsymbol = Lpz
| molweight =
| strunz = 7.FD.05
| dana = 35.2.1.1
| system = 三斜
| class = 軸面體 ()
（H-M記號相同）
| symmetry = P
| unit cell =
| color = 橙紅色、紅色
| colour =
| habit = 自然環境中為呈粒狀或球形的小晶體。實驗室生長晶體為棱柱形。
| twinning =
| cleavage = [010]完美，[100]清晰，[001]清晰
| fracture =
| tenacity =
| mohs = 2.5
| luster = 玻璃光澤
| streak = 淡黃色
| diaphaneity = 透明
| gravity = 2.69
| density =
| polish =
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| birefringence =
| pleochroism = 可見
| 2V =
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| length fast/slow =
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| melt =
| fusibility =
| diagnostic =
| solubility = 可溶於水
| impurities =
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| prop1 =
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| references =

它作为硝酸鹽矿石中罕见的矿洞填充物，与、碘鉻鉀石（dietzeite）和一起出现。

參考資料