* Controlled list
If the object type for a sample is Individual Sample or Experimental Specimen, users may elect to enter a sub-object type.
Individual Sample
- Bead– Bead pressed from a powder.
- Chemical Fraction- Parts of a parent sample separated chemically.
- Cube- Equidimensional prism of material.
- Culture- Biological material cultured in geological material.
- Cylinder- Cylinders of material.
- Gas- A gaseous material.
- Liquid- A liquid material.
- Mechanical Fraction- Parts of a parent sample separated mechanically.
- Powder- Fine-grained (<62 micron), dry, granular material.
- Slab- Rectangular prism of material where one dimension is significantly shorter than the others.
- Smear- A toothpick sample suspended in liquid and fixed on slide.
- Specimen- Material of any shape or form selected for specific characteristics of interest.
- Squeeze Cake- Solid fraction remaining after forced expulsion of interstitial fluids from a source sample; typically has the shape of a cylindrical disc.
- Thin Section- A sub-millimeter thick slice of material mounted on a glass slide.
- Toothpick- Minute amount of material taken for observation.
- Wedge- Sample form factor named for the tool used to extract it. Typically 5-20 ml in volume.
Experimental Specimen
- Thin Section
- Other