They are triangular in cross-section and spindle-shaped.

Yes, the size remains the same.  The circumference of the cardamom pods doesn’t vary, only the length varies.

No, the color may vary. It is both brown and black.

Cardamom can be stored for up to 1-2 years under air tight container. The color starts to fade, the older the cardamom is.

Cardamom capsules should be sorted into size classes and different size sieves will allow different grades to be separated as well as the separation of s…

There is no exact color in cardamom seeds. The seeds are small, and black or brown in color. Cardamom Seeds

No, the size of the cardamom is calculated by measuring the circumference of the cardamom pods.  It is not measured by its length. 7.5mm green cardamom