These are large, high-quality Malachite stones that have been tumbled and hand polished to bring out each stone's best features. This listing is for one larger stone like the pictures shown. Measurements of 3 random stones from the lot (average size).
26mm X 22mm X 21mm
38mm X 26mm X 15mm
30mm X 21mm 19
Average Weight is 54 grams
Please note that the hand-polished nature of these stones means they will not be 100% smooth. You may be able to feel the natural texture. Some people prefer a more natural stone - the small Malachite are smoother if that is your preference.