Concave iron block with crystal quartz attached
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LicenseConcave iron block to which 18 pieces of rock crystal (quartz)
Science Museum Group
© The Board of Trustees of the Science Museum
Concave iron block to which 18 pieces of rock crystal (quartz) are stuck by means of pitch ready for grinding and polishing
Details
- Category:
- Optics
- Object Number:
- 1938-128
- Materials:
- steel (metal), pitch and quartz
- Measurements:
-
overall: 100 mm x x , 245 mm, 3.74kg
- type:
- block
- credit:
- Brice, E.T.
