"mini store" is correct and usable in written English.
You can use it in informal speech, when referring to a small store. For example, "I'm going to the mini store to grab some milk".
In Greece, food is much cheaper, higher quality and there are mini stores everywhere, but in England you only have big supermarkets.
Kalyan has used the money in a retail expansion, opening 16 new stores in India and the Middle East. it has launched 550 My Kalyan mini stores to service gold jewelry and sell affordable diamonds in rural areas in his native Kerala state.
And in Santa Barbara, a developer is replacing a Vons supermarket with condominiums above a collection of mini stores selling local artisanal foods.
Thecorner.com is an online selection of mini-stores from the likes of Haider Ackermann and Maison Martin Margiela.
In the mini-stores, Best Buy employees will be trained to educate shoppers on Samsung devices and walk them through purchase and activation.
Apple also has mini-stores in Best Buy locations and partnerships with other big retailers like Walmart and Target; its iPhones and iPads are prominently displayed in carriers' retail stores.
The FurnitureMax and CopyMax businesses, mini-stores selling furniture and quick printing services within OfficeMax stores, are seen as a particularly attractive way for Boise Cascade to increase sales of its office furniture and paper.
The mini-stores, which are just 15 feet wide and less than half the size of the current Apple stores, are intended to reach a broader audience by selling a "digital lifestyle" with computers, iPod music players and accessories.
The service will help you set up a mini-store under a shop tab on Facebook.
