Chiapas amber – fossilized pine resin, around 30 million years old – is known for its clarity and diverse colors. Most is mined around Simojovel, north of San Cristóbal. This museum explains all things amber (with information sheets in English, French, German, Japanese and Italian), and displays and sells some exquisitely carved items and insect-embedded pieces. Note that a number of nearby jewelry shops have appropriated the museum's name, but this is the only place around that's housed in an ex-convent – you can't miss it.