Specimens of synthetic gems:- (a) three half-boule; one white
Specimens of synthetic gems:- (a) three half-boule; one white, one pink, one red; (b) two white rod, two red rod
Details
- Category:
- Experimental Chemistry
- Object Number:
- 1954-247
- type:
- specimens
- credit:
- Salford Electrical Instruments Ltd.