The Abacus is a sophisticated tool dating back to 300 BC. Sliding stones along a rod, ancient statesmen, merchants and mathematicians performed mathematical balancing acts using this simple yet powerful tool. ABACUS enacts this ancient, loaded gesture, allowing faceted brass clasped quartz crystals to be balanced at any point along a horizontal brass beam. Diffused LED light both highlights the jewel clasp and emanates downwards to wash surfaces in warm, dimmable light. Jewel drop and beam additions allow the expression of either minimal or elaborate balancing acts.