Desert rose is the colloquial name given to rosette formations of the minerals gypsum and barite with poikilotopic sand inclusions. The 'petals' are crystals flattened on the c crystallographic axis, fanning open along characteristic gypsum cleavage planes.
The rosette crystal habit tends to occur when the crystals form in arid sandy conditions, such as the evaporation of a shallow salt basin. Gypsum roses usually have better defined, sharper edges than barite roses.
The desert rose may also be known by the names:
- sand rose
- rose rock
- selenite rose
- gypsum rose
- gypsum rosette
- barite rose
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Büdingen, Germany
Famous quotes containing the words desert and/or rose:
“It’s alive and waiting for you. Ready to kill you if you go too far. The sun will get you, or the cold at night. A thousand ways the desert can kill.”
—Harry Essex (b. 1910)
“There has fallen a splendid tear
From the passion-flower at the gate.
She is coming, my dove, my dear;
She is coming, my life, my fate;
The red rose cries, ‘She is near, she is near;’
And the white rose weeps, ‘She is late;’
The larkspur listens, ‘I hear, I hear;’
And the lily whispers, ‘I wait.’”
—Alfred Tennyson (1809–1892)