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:
“This ripe rebuke, this burgeoning affluence
Mocks me and mocks the desert of my bed.”
—Gwendolyn Brooks (b. 1917)
“—But he, grim grinning King,
Who caitiffs scorns, and doth the blest surprise,
Late having deck’d with beauty’s rose his tomb,
Disdains to crop a weed, and will not come.”
—William Drummond, of Hawthornden (1585–1649)