Guatemala is a valuable source of which jadeite color?

Guatemala is indeed recognized for producing valuable jadeite, particularly in the green color range. Jadeite comes in a variety of colors, but the deep green variety is the most sought after and prized for its beauty and cultural significance. The green jadeite from Guatemala is known for its vibrant hue and transparency, which adds to its desirability among collectors and jewelers.

While jadeite can be found in several other colors, such as black, white, and yellow, the green variant stands out as the most historically and culturally significant in Guatemala. Black jadeite, although available, does not hold the same level of value or popularity as the green varieties. Thus, the association of Guatemala with green jadeite is well-established, making it the correct answer to the question.