| * Method accredited
in international level |
| № |
Analytes |
Method of analysis |
Characteristics of determination |
| 1 |
Magmatic, pyroclast, sedimentary and metamorphic rocks |
Petrographical complete analysis |
To define rock name, mineral composition, content of minerals, structure,
texture of the rock, shape of minerals, grain size, relationship, optical
characteristics and secondary alteration of each mineral. To describe briefly
geological processes involved in the rock. To summarize. |
| 2 |
Magmatic, pyroclast, sedimentary and metamorphic rocks |
Petrographical brief analysis |
To define mineral composition, content of each minerals,
structure, texture of the rock, shape of minerals, grain size, relationship,
secondary alteration, geological processes and brief description of each
mineral. To summarize. |
| 3 |
Magmatic, pyroclast, sedimentary and metamorphic rocks |
Petrographical analogue description |
To define name of the rock and their distinctive and analogical characteristics
comparing to predescripted analogical rocks. |
| 4 |
Rock forming main, secondary and accessory minerals |
Immersion liquid method |
To separate minerals, which are difficult to determine
in thinsection and define refractive index in heavy liquid. |
| 5 |
Main rock forming minerals |
Universal stage mehod |
To define angle of optical (2V) and angle ofextinction, to summarize. |
| 6 |
Magmatic rocks |
Petrochemical calculation method |
To determine mineral composition of magmatic of rock
by its chemical composition (by silicate analysis result) using petrochemical
calculation method. |
| 7 |
Cruched samples, concentrates |
Petrographical method |
To determine mineral composition, approximates content of minerals and
if necessary define the content of minerals by counting method of minerals,
intergrowth of minerals in briquette thin section. |
| 8 |
All types of gem and precious minerals |
- diamond tester
- binocular
|
To identify gem stones and precious stones such as diamond,
ruby, sapphire, garnet, beryl, topaz, crystal, chrysolite, turquose, lazurite
and ect by their physical characterstics, hardness specific weight. |
| 9 |
In thin section, polished thin section and polished section |
Photomicrography |
To take a photomicrograph showing characteristic microctructure and texture
of the minerals composing the rocks and ores infrom thinsection, polished
section and polished thin sections with descriptions. |
| Up |
