# Games > Cosmere > Stormlight > Items > Money & Tools Most nations on Roshar use spheres as their primary currency. Chips = a small sliver of a gem Marks = half-carat gem Broams = two-carat gem each is worth a different amount depending on which type of gem it is. Spheres can be made of diamond, garnet, heliodor, topaz, ruby, smokestone, zircon, amethyst, sapphire or emerald. These gems values depend on how useful they are in Soulcasting — diamonds are the cheapest, whereas emeralds are used to Soulcast food, making them immensely valuable standard unit: diamond mark ("mk") | Gemstone | Chip | Mark | Broam | | ------------------------ | ---- | ---- | ----- | | Diamond | 0.2 | 1 | 4 | | Garnet, Heliodor, Topaz | 1 | 5 | 20 | | Ruby, Smokestone, Zircon | 2 | 10 | 40 | | Amethyst, Sapphire | 5 | 25 | 100 | | Emerald | 10 | 50 | 200 | Spheres can store ("be infused with") Stormlight for ~5 days. (full = **infused**, empty = **dun**) Marks and broams hold enough Stormlight to shed light. ``` Name Lbs Marks Name Lbs Marks Name Lbs Marks Name Lbs Marks ─────────────────────── ───── ─────── ────────────────── ──── ────── ─────────────────────── ──── ────── ─────────────────────── ──── ───── alcohol serving 0.2 0.5-50 clothing, common 3 2 lantern, sphere 2 20 pouch 1 1 alcohol bottle 2-4 1-300 clothing, fine 6 50-200 lock & key 1 50 pulley system 12 100 anesthetic (5d) 1.5 75 clothing, ragged 1.5 0.5 lockpick 0.5 5 rope, 50' 5 30 antiseptic, potent (5d) 1 50 crowbar 3 10 magnifying lens 0.2 400 sack 0.5 0.2 antiseptic, weak (5d) 1 25 ear trumpet 1 50 manacles 6 10 scale 3 20 backpack 5 8 flask | tankard 1 1 mirror, handheld 2 25 shovel 5 8 barrel 70 15 flint & steel 1.5 4 musical instrument 0.5-20 1-50 soap 0.1 1 blanket 2 2 food, ration (1d) 0.5 0.2 net, hunting 5 4 spyglass 1 500 book, reference 1-5 10-500 food, street (1d) 1.5 3 net, fishing 15 10 surgical supplies 3 20 bottle, crem 3 0.5 food, fine (1d) 0.5 25 oil flask 1 1 tent, two-person 20 10 bottle, glass 2 1 grappling hook 4 10 paper | parchment sheet 0.1 0.5 treatment, medical (1d) 0.2 10 bucket 2 1 hammer, handheld 3 4 perfume vial 0.5 20 tuning fork 0.5 50 candle 0.2 0.2 ink bottle (1oz) 0.2 40 pick, mining 10 10 unencased gem, infused 0.01 2 case, leather 1 4 ink pen 0.1 0.1 poison, weak (1d) 0.2 20 vial, glass 0.2 4 chain, thick, 10' 10 20 jug | pitcher 4 2 poison, effectual (1d) 0.2 50 waterskin 1 1 chain, thin, 1' 0.5 20 ladder, 10' 20 5 poison, potent (1d) 0.2 120 wax block 0.5 2 chest 25 30 lantern, oil 2 20 pot, iron 10 8 whetstone 1 0.2 ─────────────────────── ───── ─────── ────────────────── ──── ────── ─────────────────────── ──── ────── ─────────────────────── ──── ───── anesthetic antiseptic, potent antiseptic, weak crowbar flint & steel grappling hook manacles net ```