Soil Textural Triangle 
A triangle in which the texture of a soil can be readily determined. There are two soil textural triangles in use: The UK Soil Textural Triangle, and the USDA Soil Textural Triangle.
Soil Textural Triangle
A triangle in which the texture of a soil can be readily determined. There are two soil textural triangles in use: The UK Soil Textural Triangle, and the USDA Soil Textural Triangle.