Maybe it's because your approach or usage doesn't match the game's mechanics or requirements.
Well, it might be that the game has updated and your 'mine' is no longer as effective as it was before. Or perhaps you haven't unlocked the right conditions for it to be useful.
To mine in Story of Seasons, you need to find the mining area and have the right tools. It's usually not too complicated once you know where to go.
Well, first, think about the unique characteristics of each season. Then, look for connections and contrasts between them. For example, how spring brings new life while winter brings dormancy. This can help you uncover the story of seasons.
You might need to complete certain quests or reach specific levels in the game to unlock the mine. Check the game's quest log for clues.
You can usually access the mine by fulfilling certain in-game requirements or reaching a specific point in the story progression.
Perhaps it's just for aesthetic or story-building purposes. Sometimes, elements like these are included to enhance the game's world and make it more immersive, even if they don't have a practical use at first glance.
It could be a way to make the game more challenging or to add variety. Maybe they'll become useful for crafting or trading in future updates or events.
It could be that those elements are intended to build a more complex and immersive world. Sometimes what seems useless at first might have a purpose later on in the game.
It could be that the useless jewels serve as a decorative or aesthetic aspect within the game world, without having a practical purpose. Sometimes, such elements are included to make the game more visually diverse and immersive.
It could be for plot development or to add an element of mystery. Maybe they'll become useful later on.
You need to find the right mining spots first. Usually, they are indicated on the map or hinted at by NPCs. Then, equip the proper mining tools and start digging.