Tektite A 6.1g
Value: €28.00
Quantity: 6.1g
Quality: A
Origin: Asteroid impact (Tonkin bay, Vietnam)
Hardness: 6,5 – 7 Mohs (O'Keefe, NASA)
Chemical composition: SiO2 (+Al2O3)
Damage: Micro chip
Locality: Jinkouhe District, Leshan, China
Dimensions: 2.8cm x 2.1cm x 1.7cm
A quality - prime specimens in terms of morphology, color, and light reflection.
B quality – medium grade specimens.
C quality - specimens with basic morphology, color, and light reflection.
An additional plus stands for morphological beauty (+), color (+), or sunlight reflection (+).
Undamaged - the specimen is faultless.
Micro chip - minor surface damage from 1mm to 4mm.
Small chip - minor surface damage from 4 mm to 8 mm.
Large chip - surface damage from 8 mm to 12 mm.
Big chip - surface damage over 12mm.
