Jenny Jade News
Luster and other reflections effects
BY the term brilliance we allude to the way and degree where light is reflected from the surface of a material. Surfaces of a similar material, yet of fluctuating levels...
Luster and other reflections effects
BY the term brilliance we allude to the way and degree where light is reflected from the surface of a material. Surfaces of a similar material, yet of fluctuating levels...
specific gravity determinations
Weighing a Gem in Water. In the previous lesson it was seen that the identity of a preciousstone may be found by determining its specific gravity, which is a number...
specific gravity determinations
Weighing a Gem in Water. In the previous lesson it was seen that the identity of a preciousstone may be found by determining its specific gravity, which is a number...
Specific Gravity
THE properties so far considered as serving to recognize valuable stones have all dependedupon the conduct of the material toward light.These properties were viewed as first since they bear, to...
Specific Gravity
THE properties so far considered as serving to recognize valuable stones have all dependedupon the conduct of the material toward light.These properties were viewed as first since they bear, to...
absorptipon and dichroism
Reason for Color in Minerals. In Lesson III. we saw that numerous pearl materials cause light that enters them to separation and take two ways inside the material. Presently all...
absorptipon and dichroism
Reason for Color in Minerals. In Lesson III. we saw that numerous pearl materials cause light that enters them to separation and take two ways inside the material. Presently all...
Refraction 2
Clarification of Double Refraction. In Lesson II. we realized what is implied by refraction of light. While glass and few valuable stones (jewel, garnet, and spinel) twist light as was...
Refraction 2
Clarification of Double Refraction. In Lesson II. we realized what is implied by refraction of light. While glass and few valuable stones (jewel, garnet, and spinel) twist light as was...
Refractions
Clarification of Refraction. Maybe the surest single technique for recognizing valuable stones is to discover the refractive file of the material. To one not familiar with the study of material...
Refractions
Clarification of Refraction. Maybe the surest single technique for recognizing valuable stones is to discover the refractive file of the material. To one not familiar with the study of material...